Companies that use Hubspot Salesforce Integration

The signals we use, and where they fall short

We believe in being transparent about how we collect our data and what its limitations are, unlike most other data providers who operate as black boxes.

Detecting the HubSpot-Salesforce integration is harder than detecting most point products, because there is no single DNS record or public endpoint that confirms it. Instead, we infer it from artifacts that the integration leaves behind in publicly embeddable HubSpot forms.

The two checks under the hood

We start by discovering HubSpot forms embedded on company websites. For each form, we query HubSpot's public embed endpoint to retrieve the full form definition as JSON. We then look for two signals inside that definition.

1. The sfdcCampaignId field. When a HubSpot form is tied to a Salesforce campaign, the form JSON includes a non-null sfdcCampaignId value. This field only appears when the Salesforce integration is active and a campaign has been explicitly linked to the form.

2. The salesforceinformation property group. HubSpot creates a reserved property group called salesforceinformation when the Salesforce integration is connected to a portal. Fields that sync to Salesforce custom objects, identifiable by their __c suffix (Salesforce's naming convention for custom fields), are assigned to this group. If any form field carries this group name, the integration is active.

Either signal firing is sufficient to flag the company.

Where this falls short

This methodology only catches companies that actively use the integration on forms we can discover and crawl. It will miss companies that have the integration connected but have not mapped any Salesforce fields to their public-facing forms, for example companies that use HubSpot purely for marketing emails and sync contacts to Salesforce via workflows rather than form submissions. It will also miss companies using private or password-protected forms, and any portal using HubSpot's legacy v1 form format, which does not expose the same JSON structure.

In practice, a company with the integration connected and no form-level evidence of it is likely using HubSpot and Salesforce in a more loosely coupled way. The companies we do flag tend to be deeper, more committed users of the integration.